TOP243YN The Power Integrations TOP243YN is an AC/DC converter with a flyback topology. It operates with a voltage rating of 700V and provides up to 45W of power.
Mfr Part #:

TOP243YN

Available from 2 distributors
Mfr Name: Power Integrations
Power Integrations
The Power Integrations TOP243YN is an AC/DC converter with a flyback topology. It operates with a voltage rating of 700V and provides up to 45W of power.
Total Stock: 2,005 pcs
$ Price Range: $0.75

TOP243YN Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,000 pcs
2000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
5 pcs
5 pcs On Request 1 On Request On Request On Request On Request On Request

TOP243YN Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Duty Cycle
Duty Cycle (Max)
Fault Protection
Frequency
Internal Switch(s)
Lead Style
Mounting Type
Operating Temperature
Output Isolation
Output Voltage
Power (Watts)
Supplier Device Package
Supplier Package
Topology
Voltage

TOP243YN Description

Short technical summary and product information.

The Power Integrations TOP243YN is an integrated offline switcher designed for flyback applications. It features a wide input voltage range from 85 VAC to 265 VAC and a maximum output power of 45W. The device operates at a switching frequency between 66kHz and 132kHz, with a maximum duty cycle of 83%.

 

This AC/DC converter includes integrated fault protection for current limiting, over temperature, and over voltage conditions. It is housed in a TO-220-7C package and supports through-hole mounting. The operating temperature range is from -40°C to 150°C.

 

Key features include isolated output, frequency control, and an internal switch. The TOP243YN is suitable for various power supply designs requiring efficient and reliable offline conversion.

TOP243YN Quick Information

Product Type: AC/DC Converter
Series: TOPSwitch-GX
Canonical Name: TOP243YN AC/DC Converter
Subcategory: PMIC-Power Management ICs

TOP243YN Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TOP243YN Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

TOP243YN Features

  • 700V voltage rating for AC/DC conversion.
  • 45W maximum output power capability.
  • 66kHz to 132kHz switching frequency range.
  • TO-220-7C package with through-hole mounting.
  • Integrated fault protection features included.

TOP243YN Applications

  • Used in AC-DC power supplies.
  • Ideal for offline flyback converters.
  • Suitable for industrial power systems.
  • Applicable in consumer electronics chargers.

TOP243YN FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the TOP243YN?

The input voltage range is 85 VAC to 265 VAC.

What is the output voltage of the TOP243YN?

The output voltage is 12 V.

What is the switching frequency range of the TOP243YN?

The switching frequency range is 66 kHz to 132 kHz.

What fault protections does the TOP243YN include?

It includes current limiting, over-temperature protection, and over-voltage protection.

What is the operating temperature range of the TOP243YN?

The operating temperature range is -40°C to 150°C (junction temperature).

What package is the TOP243YN available in?

It is available in a TO-220-7C through-hole package with formed leads (6 leads).

What is the maximum duty cycle of the TOP243YN?

The maximum duty cycle is 83%.

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